An efficient method of analysis of heat transfer during plane strain upsetting of a viscoplastic strip

Sergei Alexandrov, Wiktoria Miszuris, Lihui Lang

Research output: Contribution to journalArticlepeer-review

2 Citations (SciVal)
153 Downloads (Pure)

Abstract

A solution for the transient heat transfer during plane strain upsetting of a viscoplastic strip has been developed using a Lagrangian coordinate system and the Green's function available in the literature. A general approximate solution for stress and velocity found elsewhere has been used. In contrast to conventional viscoplastic models adopted in theoretical analyses of metal forming processes, the model considered in the present paper includes a saturation stress. This model used in the conjunction with the maximum friction law predicts the localization of plastic deformation in the vicinity of the friction surface. In turn, localized plastic deformation and temperature are responsible for the generation of a very narrow layer with drastically modified microstructure near the friction surface. The appearance of such layers is reported in numerous experimental works
Original languageEnglish
Article numbere201700313
Number of pages10
JournalZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik
Volume99
Issue number5
Early online date27 Feb 2019
DOIs
Publication statusPublished - 01 May 2019

Keywords

  • friction
  • localization of plastic deformation
  • singularity
  • upsetting
  • viscoplasticity

Fingerprint

Dive into the research topics of 'An efficient method of analysis of heat transfer during plane strain upsetting of a viscoplastic strip'. Together they form a unique fingerprint.

Cite this